If everyone being oppressed is rallied together then it’s an immensely powerful force, but those at the top are always working to keep us divided, uneducated, and poor.

You can’t unite the people together until you educate them more. You can’t educate them more until you remove them from poverty. You can’t get them out of poverty until you redistribute the wealth. You can’t redistribute the wealth until you forcibly take it from the ruling class. You can’t force my take it until you unite the people together, etc. etc.

That or you wait until food and water is so scarce that the majority of the population becomes concerned if they can survive in the short term. But that’s a wildcard situation that could go in any direction.